The row axis has had Expand 0/1/2/3 since the pivot landed; the column
axis had nothing. With a year over month split there was no way to step
back to whole years short of dragging split_by apart in the settings
panel and putting it back afterwards.
Perspective gives the two axes nothing in common here. Rows collapse
because the GROUP BY ROLLUP view holds every level at once and
view.set_depth() hides the deeper ones. For columns there is no
equivalent: expand()/collapse() take a row index, ViewConfig has
group_by_depth but no split_by_depth, and split_rollup_mode only chooses
whether subtotal column groups are emitted — a view shape, not an
interaction. So applySplitDepth() collapses by restoring a truncated
split_by, which rebuilds the view.
Three consequences of that rebuild, each handled:
- Once collapsed, viewer.save() only reports the short split_by, so the
full hierarchy is held separately (splitFullRef) and persisted into the
layout as split_full. Without it, collapsing would be a one-way door:
reload while collapsed and the deeper levels are gone. adoptSplit() is
the single place it is set.
- perspective-config-update fires for our own restore as well as for the
user rearranging the pivot, and the two mean opposite things — one must
adopt the new hierarchy, the other must not. collapsingRef separates
them.
- Row depth lives on the discarded view, so it is re-applied afterwards.
The selection is cleared on each change: slices name the split_by
dimensions they were cut from, and the highlight is keyed on grid
coordinates. Neither survives a column axis that just changed shape.
Buttons are named for the level they show — Total, then one per split_by
column — rather than numbered like Expand, since the levels are named and
a number would say nothing about what you are collapsing to.
Whole-axis, not per-branch: Excel can collapse 2025 while 2026 stays
expanded, and this cannot. `columns` selects which measures appear, not
individual split combinations, so there is no way to hide one branch's
leaves while keeping another's.
Verified in the browser against cash/test with split_by Year x Reason:
Reason -> Total -> Year -> Reason all render the expected column sets and
the right button highlights; and a reload while collapsed to Year comes
back collapsed with Reason still offered.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LoxNi8cFsQLPUSw3obb5NH
Brings the Perspective work forward onto the display-grain decision in
c5b12aa. Four commits:
- Load Perspective from the bundled /inline entrypoints and pin every
package at 5.2.0, after the 4.x CDN bundle resolved its server WASM to
an unversioned path and took the app down on 2026-08-10.
- Multi-slice operations (slices array, apply_mode prorate/each),
per-measure resolution, target_basis, initiative tags, the tagged
bridge, and the reworked adjustment panel.
- Drag to select a region, and show the selection on the grid.
Merges clean against c5b12aa; the two touch disjoint files.
Two gaps in how the pivot reports a selection. Dragging across cells did
nothing, and a selection built from several ctrl-clicks was invisible on
the grid — the panel listed the slices but nothing on screen said which
cells they came from.
Drag-select
- The perspective-select handler was reading detail.selected and
detail.insertConfigs. In 5.2.0 that event carries a ViewWindow —
{ start_row, end_row, start_col, end_col }; insertConfigs only appears
on perspective-global-filter, and only in SELECT_ROW_TREE mode. So the
handler always returned early and the whole path was dead.
- It fires on every mouseover as the region grows, so the handler now
records the latest window and a window-level mouseup commits it. A
single-cell region is skipped there: perspective-click already owns
plain and modifier clicks, and handling it in both places would undo a
ctrl-click toggle. Modifier+drag adds to the selection.
- Turning a region back into slices re-derives, per cell, the same
filters Perspective attaches to a click — row dimensions from the
view's __ROW_PATH__, column dimensions from the split_by segments of
the column name. Reading the path rather than the rendered cell is
what keeps dates as epoch millis instead of whatever the grid
formatted them as. The grand-total row resolves to no dimension at
all — that would mean the whole version — and is skipped.
Highlight
- The datagrid already highlights whatever sits in its own
model._selection_state.selected_areas, and wipes that list on every
mousedown, so a multi-click selection only ever showed the last cell.
Keep a sliceKey -> rectangles map parallel to `slices` and push the
full set back after each change, which gets the native highlight for
every selected cell without any styling of our own.
- Deselecting anywhere — ctrl-click, the panel's x, Clear selection —
prunes the map by live slice key, so the grid and the panel cannot
disagree.
Also: edit_mode is forced to SELECT_REGION on restore rather than
defaulted, since a saved layout's plugin_config could previously
override it and turn selection off entirely.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LoxNi8cFsQLPUSw3obb5NH
Documentation had drifted far enough to mislead: the spec described the
single-slice panel, the target/delta modes that no longer exist, and the
old `slice` request shape, while both files still claimed Perspective
4.4.0 from a CDN when it has been bundled inline at 5.2.0 since August.
pf_spec.md
- pf.log gains `tag`, with why it is written by a follow-up UPDATE
rather than through the per-source templates in pf.sql.
- Operations envelope documents `slices`, `apply_mode`, and the OR-of-
AND-groups WHERE clause (and why it cannot be flattened to IN lists).
- Scale documents per-measure resolution and `target_basis`, plus the
two guards: non-selective slices, and proration across a ~zero pool.
- New routes: PATCH /log/:logid, table-info, bridge, source tags.
- Forecast View rewritten for the dockable panel and the ledger; adds
the selection caveat around pf_iter and the expand-depth explanation.
- New Bridge View section; Log View gains inline tag editing.
- Status block refreshed, with a Fixed subsection recording the three
correctness bugs and their causes.
- Open Questions: adds bridge drill-down and targeting one iter band;
notes what the bridge partially answers.
CLAUDE.md
- Corrects the Perspective version and the CDN claim.
- Project layout now lists components/, including the two new files.
- Selection section covers multi-select and why duplicate effective
slices are collapsed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01W1TQiBYZbbWWkMNoCtUd8M
Document the outcome of the Option C spike (server-side DuckDB as a
Perspective virtual server) and the resulting architecture decision.
pf_perspective_options.md:
- Spike findings: latency is excellent (~12ms round trip, 5-29ms
aggregation, ~1.5-1.9s to materialize 534,902 rows) but Perspective's
GenericSQLVirtualServerModel ignores group_by_depth and has no
ViewConfig field for per-node expansion state, so interactive
drill-down is not achievable. This affects options B, C and D alike
since they share that SQL model.
- Decision: the real lever is grain, not transport. Pre-aggregating to
display grain collapses 534,902 -> 4,642 rows (~115x) on osm_stack
while keeping the native Perspective engine, so expand/collapse/
depth/sort/filter continue to work.
- Two candidate designs (Path A live virtual server vs Path B
pre-aggregated extract) with the deciding question: do real cuts ever
exceed the browser's leaf-row ceiling?
pf_spec.md:
- Concrete Path B design: pf.col_meta.in_grain, GET /api/versions/:id/agg,
synthetic pf_gkey index, and the append-deltas write/undo model that
mirrors the prior Excel pivot-cache workflow.
Drop pf_ux_mockup.md — an ASCII mockup of UI that is now built; the
views in ui/src/views are the current reference.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Document the @perspective-dev distribution (not FINOS @finos/perspective):
loader (npm /inline vs CDN), the version trilemma (inline needs 4.5.x,
viewer-d3fc caps at 4.4.1, charts need 4.4.1 — can't have all three),
Arrow vs JSON delivery constraints, deploy pattern, and an upgrade smoke
test. Correct CLAUDE.md's stale perspective.finos.org link to the actual
@perspective-dev repo.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- units role is now optional; spec and CLAUDE.md reflect conditionality in SQL patterns
- pf.col_meta gains dim_group and dim_period_col fields (documented in both files)
- pf.dim_period calendar table added to schema docs
- pf.source default_layout column added to spec DDL
- Forecast table metadata columns corrected to pf_iter/pf_logid/pf_created_at throughout spec
- SQL patterns updated with correct CTE structure and RETURNING * to match generated code
- Project status updated to 2026-06-12; stale Arrow IPC open question removed
- todo.md deleted; open items retained in CLAUDE.md known issues
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Replace Bootstrap fill icons with Feather-style stroke SVGs (sun with
rays + crescent moon) in StatusBar toggle.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
